Theories of Everything with Curt Jaimungal

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This podcast is about dark matter — and Professor Philip Mannheim thinks it isn't missing at all, just hiding in plain sight as the rest of the visible universe. In his first-ever podcast, on ideas he's pursued since 1972, Mannheim lays out conformal gravity: a theory built on Weyl symmetry rather than Einstein's equations, which explains galaxy rotation curves without dark matter, tames the cosmological constant, and fits the accelerating universe without fine-tuning. With longtime collaborator Carl Bender, he also resolves gravity's infamous "ghost" problem using PT symmetry instead of Hermiticity — suggesting the graviton may not even exist as a particle. I hope you enjoy.

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TIMESTAMPS:
- 00:00:00 - Einstein's Relativity Foundations
- 00:05:47 - Riemann Tensor and Curvature
- 00:11:50 - Flaws in Einstein's Equations
- 00:17:23 - Quantum Gravity Renormalizability
- 00:23:28 - Conformal Symmetry Principles
- 00:30:09 - Dynamical Mass Generation
- 00:37:08 - Inflation and Horizon Problems
- 00:43:55 - Renormalization Group Fixed Points
- 00:51:05 - Composite Higgs Solution
- 00:57:03 - Weyl Tensor Action
- 01:03:44 - Solving Dark Matter
- 01:09:36 - Cosmic Coincidence Problem
- 01:16:27 - Hubble Tension and Redshift
- 01:24:31 - PT Symmetry and Ghosts
- 01:31:21 - Probability Conservation vs. Hermiticity
- 01:38:13 - CPT Theorem and Fermions
- 01:45:14 - Quantum Decays and Resonances
- 01:51:05 - Parity and Right-Handed Neutrinos
- 01:56:14 - Gravitons and Wavefunction Collapse
- 02:02:24 - Cyclic Universes and Singularities
- 02:08:24 - String Theory Fine-Tuning
- 02:14:45 - Unitarity and Poincaré Stresses
- 02:21:02 - Gravitational Lensing and Tenure
- 02:26:55 - Nature and Experimental Data

LINKS MENTIONED:
- Philip's Papers: https://inspirehep.net/authors/998943
- Newton's Law Of Gravity: https://en.wikipedia.org/wiki/Newton%27s_law_of_universal_gravitation
- Geodesics: https://en.wikipedia.org/wiki/Geodesics_in_general_relativity
- Equivalence Principle: https://en.wikipedia.org/wiki/Equivalence_principle
- Introduction To General Relativity [Book]: https://amazon.com/dp/0070004234?tag=toe08-20
- Foundation Of The General Theory Of Relativity [Paper]: https://isidore.co/misc/Physics%20papers%20and%20books/St.%20John's%20College's,%20TAC's%20curricula's,%20et%20alii%20sci.%20papers/1916-%20The%20Foundation%20of%20the%20General%20Theory%20of%20Relativity%20(Einstein).pdf
- Dynamical Symmetry Breaking As A Bootstrap [Paper]: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.12.1772
- Dynamics Of The Universe And Spontaneous Symmetry Breaking [Paper]: https://ui.adsabs.harvard.edu/abs/1980ApJ...241L..59K/abstract
- Mass Generation, The Cosmological Constant Problem, Conformal Symmetry, And The Higgs Boson [Paper]: https://arxiv.org/abs/1610.08907
- Living Without Supersymmetry [Paper]: https://arxiv.org/abs/1506.01399
- Exact Vacuum Solution To Conformal Weyl Gravity And Galactic Rotation Curves [Paper]: https://ui.adsabs.harvard.edu/abs/1989ApJ...342..635M/abstract
- No-Ghost Theorem For The Pais-Uhlenbeck Oscillator [Paper]: https://arxiv.org/abs/0706.0207
- Fitting Galactic Rotation Curves With Conformal Gravity [Paper]: https://arxiv.org/abs/1011.3495
- Cosmic Coincidence Problem: https://en.wikipedia.org/wiki/Cosmic_coincidence_problem
- Cosmological Perturbations In Conformal Gravity [Paper]: https://arxiv.org/pdf/1109.4119
- Implications Of Cosmic Repulsion For Gravitational Theory [Paper]: https://arxiv.org/abs/astro-ph/9804335
- Exact Solution To Perturbative Conformal Cosmology [Paper]: https://arxiv.org/abs/2101.02608
- CPT Symmetry Without Hermiticity [Paper]: https://arxiv.org/abs/1611.02100
- Jenny Wagner [TOE]: https://youtu.be/Bj4Ra75vvTc
- Neil Turok [TOE]: https://youtu.be/_xxLW71vT4s
- Chiara Marletto [TOE]: https://youtu.be/Uey_mUy1vN0
- John Donoghue [TOE]: https://youtu.be/dG_uKJx6Lpg
- Cumrun Vafa [TOE]: https://youtu.be/kUHOoMX4Bqw

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Does Batman exist? Not really—but proving he doesn't turns out to be a logical minefield. This episode tackles negative existentials: why saying "X doesn't exist" seems to require referring to X in the first place. We trace the debate from Russell's theory of descriptions, through Kripke's devastating critique in Naming and Necessity, to Meinong's radical claim that non-existent objects still populate our domain of discourse. Plus: null pointer exceptions as computer science's Meinongianism, why AI struggles with fictional facts, and why three competing theories—descriptivism, Meinongianism, and abstract realism—each come with a steep philosophical price tag. I hope you enjoy.

TIMESTAMPS:
- 00:00 - The Batman Paradox
- 03:26 - Russell’s Theory of Descriptions
- 06:36 - Kripke’s Rigid Designators
- 09:44 - Meinongian Domain Quantification
- 12:45 - Nuclear and Extra-Nuclear Properties
- 15:50 - Modal Descriptivism and AI
- 18:54 - Presentism and Temporal Ontology

LINKS MENTIONED:
- Diana Pasulka [TOE]: https://youtu.be/E5MuTHUbMUs
- Why I Don't Buy The Simulation Hypothesis [TOE]: https://youtu.be/3_lBPMc6JRY
- Elan Barenholtz [TOE]: https://youtu.be/A36OumnSrWY
- Naming And Necessity [Book]: https://neuroself.wordpress.com/wp-content/uploads/2020/11/naming-and-necessity-full-text.pdf
- Tractatus Logico-Philosophicus [Book]: https://amazon.com/dp/0486404455?tag=toe08-20
- Critique Of Pure Reason [Book]: https://amazon.com/dp/0140447474?tag=toe08-20
- The Interpretations Of Quantum Mechanics In 5 Minutes [Article]: https://curtjaimungal.substack.com/p/the-interpretations-of-quantum-mechanics
- Alexius Meinong: https://plato.stanford.edu/entries/meinong/
- On Denoting [Paper]: https://www.uvm.edu/~lderosse/courses/lang/Russell(1905).pdf
- Graham Priest [TOE]: https://youtu.be/ZGOMmGK4eeY
- Nonexistent Objects [Book]: https://amazon.com/dp/0300024045?tag=toe08-20
- Abstract Objects [Book]: https://amazon.com/dp/9027714746?tag=toe08-20
- Noam Chomsky [TOE]: https://youtu.be/RIY0GFtHU2U
- John Vervaeke [TOE]: https://youtu.be/GVj1KYGyesI
- Presentism: https://iep.utm.edu/time/
- Joscha Bach [TOE]: https://youtu.be/3MNBxfrmfmI
- Existence [Book]: https://amazon.com/dp/1107625262?tag=toe08-20

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This is a podcast all about time: depending on how you look at it, that's either unnerving or exhilarating. Professor Simon Saunders — Emeritus Fellow at Merton College, Oxford, and one of the most celebrated philosophers of physics alive — goes deep on what time actually is, why special relativity demands a block universe, and what any of this has to do with the Many Worlds Interpretation. Why doesn't space inherit the paradoxes of time? What's really missing from the block universe picture (and is it the same thing missing from quantum probability?) Saunders argues that Bell inequality violations aren't evidence against locality but evidence for Many Worlds, presents a novel derivation of the Born rule from a single physical postulate, and sketches a quantum version of Leibniz's monadology as a possible path through the mind-body problem. I hope you enjoy.

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TIMESTAMPS:
- 00:00:00 - Defining Temporal Passage
- 00:05:03 - Block Universe and Relativity
- 00:11:15 - The Timeless Viewpoint
- 00:18:07 - CMB and Global Time
- 00:23:19 - Persistence and Spatial Revisitability
- 00:31:02 - Philosophy of Physics Foundations
- 00:38:46 - Relativistic Localization Problems
- 00:49:22 - Reeh-Schlieder and Vacuum States
- 00:55:23 - Branching and Actuality
- 01:05:41 - Interval Probabilities and Frequentism
- 01:14:14 - Decoherent Histories Interpretation
- 01:25:49 - Ontic Structural Realism
- 01:32:15 - Deriving the Born Rule
- 01:38:02 - Leibnizian Quantum Monadology

LINKS MENTIONED:
- Simon's Papers: https://scholar.google.com/citations?user=htEv3XIAAAAJ
- Many Worlds? [Book]: https://amazon.com/dp/0199560560?tag=toe08-20
- A Brief History of Time [Book]: https://amazon.com/dp/0553380168?tag=toe08-20
- How Relativity Contradicts Presentism [Paper]: https://users.ox.ac.uk/~lina0174/kansas.pdf
- Trouble With Quantum Mechanics [Article]: https://www.nybooks.com/articles/2017/01/19/trouble-with-quantum-mechanics/
- Locality, Complex Numbers, and Relativistic Quantum Theory [Paper]: https://www.jstor.org/stable/192768
- Bohmian Mechanics: https://plato.stanford.edu/entries/qm-bohm/
- Finite Frequentism Explains Quantum Probability [Paper]: https://arxiv.org/abs/2404.12954
- Chance in the Everett Interpretation [Paper]: https://arxiv.org/abs/1609.04720
- Reeh-Schlieder Defeats Newton-Wigner [Paper]: https://arxiv.org/abs/quant-ph/0007060
- Everett's Thesis [Paper]: https://cqi.inf.usi.ch/qic/everett_phd.pdf
- Physics and Leibniz's Principles [Paper]: https://philpapers.org/rec/SAUPAL-2
- Critical Exposition of the Philosophy of Leibniz [Book]: https://amazon.com/dp/1605204536?tag=toe08-20
- Avshalom Elitzur [TOE]: https://youtu.be/pWRAaimQT1E
- David Wallace [TOE]: https://youtu.be/4MjNuJK5RzM
- David Deutsch [TOE]: https://youtu.be/vKeWv-cdWkM
- Sean Carroll [TOE]: https://youtu.be/9AoRxtYZrZo
- Tim Maudlin [TOE]: https://youtu.be/fU1bs5o3nss
- Sechit Madra (Trainer): https://www.instagram.com/sechit_madra

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This is a breaking podcast. We're premiering a new paradigm for quantizing 4D gravity here first, without strings. Neil Turok — inaugural Higgs Chair at Edinburgh, former director of Perimeter Institute, and 2026 Fellow of the Royal Society — believes quantum gravity may not require strings, extra dimensions, or a multiverse. The key: a 1970s theory called quadratic gravity, long abandoned over two seemingly fatal problems. Turok and Bateman argue both problems dissolve — one by reinterpreting a classical instability as ordinary gravitational expansion, the other by a subtle tweak to the Born rule that allows quantum states of negative norm without ever producing negative probabilities. One quiet assumption, Turok argues, underpins decades of string theory's necessity. Drop it, and the whole case for a multiverse unravels. Neil graciously gave me a sneak peek at his and his PhD student Sam Bateman's new research. Bleeding edge! I hope you enjoy.

TIMESTAMPS:
- 00:00:00 - Quadratic Gravity Emergence
- 00:05:03 - Renormalization and Asymptotic Freedom
- 00:10:57 - Ghosts and Krein Spaces
- 00:16:00 - Generalizing the Born Rule
- 00:23:27 - Ostrogradsky Instability Reinterpreted
- 00:31:29 - UV Completeness and QCD
- 00:38:21 - Higgs Compositeness and Hierarchy
- 00:43:58 - CPT Symmetric Universe Minimalism
- 00:52:54 - The 36 Fields Mystery
- 01:00:10 - Orthodoxy vs. Revolutionary Ideas
- 01:06:39 - Gravitational Entropy and Smoothness
- 01:16:14 - Multiverse Measure Problem
- 01:23:05 - Theoretical Physics Health
- 01:30:07 - Sam Bateman’s Breakthrough
- 01:43:33 - Philosophy of Cosmology

LINKS MENTIONED:
- Neil's Papers: https://inspirehep.net/authors/985402
- Renormalization of Higher-Derivative Quantum Gravity [Paper]: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.16.953
- Quadratic Gravity: https://en.wikipedia.org/wiki/Quadratic_gravity
- Asymptotic Freedom in Higher-Derivative Quantum Gravity [Paper]: https://www.sciencedirect.com/science/article/abs/pii/0370269385902485
- Ostrogradsky's Theorem: http://www.scholarpedia.org/article/Ostrogradsky's_theorem_on_Hamiltonian_instability
- Krein Space: https://en.wikipedia.org/wiki/Indefinite_inner_product_space
- CPT-Symmetric Universe [Paper]: https://arxiv.org/abs/1803.08928
- Pathologies of Dimension-Zero Scalar Fields [Paper]: https://arxiv.org/abs/2603.05683
- No-Ghost Theorem for Pais-Uhlenbeck Oscillator [Paper]: https://arxiv.org/abs/0706.0207
- Cancelling the Vacuum Energy [Paper]: https://arxiv.org/abs/2110.06258
- Gravitational Entropy [Paper]: https://arxiv.org/abs/2201.07279
- Neil's Lecture: https://pirsa.org/15100070

- Neil Turok on the Big Bang [TOE]: https://youtu.be/ZUp9x44N3uE
- Neil Turok on Black Holes [TOE]: https://youtu.be/zNZCa1pVE20
- Carlo Rovelli [TOE]: https://youtu.be/hF4SAketEHY
- Leonard Susskind [TOE]: https://youtu.be/2p_Hlm6aCok
- Jacob Barandes [TOE]: https://youtu.be/wrUvtqr4wOs
- Geoffrey Hinton [TOE]: https://youtu.be/b_DUft-BdIE
- Harvey Friedman [TOE]: https://youtu.be/gx3uKT1qJvY
- Scott Aaronson [TOE]: https://youtu.be/1ZpGCQoL2Rk
- David Deutsch [TOE]: https://youtu.be/vKeWv-cdWkM
- Peter Woit & Joseph Conlon [TOE]: https://youtu.be/fAaXk_WoQqQ

More links at https://curtjaimungal.substack.com

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Roman Yampolskiy has spent two decades being right about things people wished he wasn't — and he's not here to scare you, but to be precise. He argues AI alignment isn't merely unsolved but fundamentally under-defined: no agreed-upon values, no way to formalize them even if there were, and no mechanism for enforcing them on something smarter than its creators. His strongest argument isn't a doom scenario, it's that you cannot indefinitely control something smarter than you.

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TIMESTAMPS:
- 00:00:00 - Defining General Intelligence
- 00:05:58 - AI Instrumental Convergence
- 00:11:11 - The Orthogonality Thesis
- 00:16:15 - Escaping the Simulation
- 00:21:45 - Principle of Indifference
- 00:27:51 - Acquired Savant Syndrome
- 00:33:51 - LLM Internal States
- 00:41:02 - AI Safety Impossibility Results
- 00:47:16 - Public Misconceptions
- 00:53:21 - Existential vs. Suffering Risks
- 01:01:20 - AI Alignment Definition Crisis
- 01:09:28 - Computational Irreducibility
- 01:16:20 - Substrate Independence
- 01:22:50 - Philosophical Zombie Critique
- 01:29:57 - The Cassandra Paradox
- 01:37:35 - Religion and Simulation
- 01:46:03 - Digital Physics Evidence
- 01:51:20 - Limits of Control

LINKS MENTIONED:
- Roman's Papers: https://scholar.google.com/citations?user=0_Rq68cAAAAJ
- Roman's Podcast: https://www.youtube.com/channel/UCPIq6Bb-1iLmqyksJjy4kLQ
- Roman's Twitter: https://x.com/romanyam
- Roman's Facebook: https://www.facebook.com/roman.yampolskiy
- AI Identity [Paper]: https://philarchive.org/archive/ZIETPO-7
- Basic AI Drives [Paper]: https://selfawaresystems.com/wp-content/uploads/2008/01/ai_drives_final.pdf
- Qualia in Agents [Paper]: https://arxiv.org/abs/1712.04020
- Orthogonality Thesis [Paper]: https://nickbostrom.com/superintelligentwill.pdf
- Escape the Simulation [Paper]: https://www.researchgate.net/publication/369187097_How_to_Escape_From_the_Simulation
- Could This AI Be Conscious? [Article]: https://unherd.com/2026/05/is-ai-the-next-phase-of-evolution
- Impossibility Results in AI [Paper]: https://arxiv.org/abs/2109.00484
- When AIs Act Emotional: https://youtu.be/D4XTefP3Lsc
- Hacking the Simulation [Paper]: https://philarchive.org/rec/YAMHTS-2
- Autonomous Machine Intelligence [Paper]: https://openreview.net/pdf?id=BZ5a1r-kVsf
- Hinton on Maternal Instincts [Article]: https://fortune.com/2025/08/14/godfather-of-ai-geoffrey-hinton-maternal-instincts-superintelligence/
- Singleton Hypothesis [Paper]: https://nickbostrom.com/fut/singleton
- New Kind of Science [Book]: https://amazon.com/dp/1579550088?tag=toe08-20
- On AI Controllability [Paper]: https://arxiv.org/abs/2008.04071
- Universe as Numerical Simulation [Paper]: https://arxiv.org/abs/1210.1847
- Nir Lahav [TOE]: https://youtu.be/3nHiOtnnrzA
- Joscha Bach [TOE]: https://youtu.be/3MNBxfrmfmI
- Bas Van Fraassen [TOE]: https://youtu.be/lhpRAWxvY5s
- Simulation Hypothesis [TOE]: https://youtu.be/3_lBPMc6JRY
- Geoffrey Hinton [TOE]: https://youtu.be/b_DUft-BdIE
- Max Tegmark [TOE]: https://youtu.be/-gekVfUAS7c
- Stephen Wolfram [TOE]: https://youtu.be/FkYer0xP37E
- David Chalmers [TOE]: https://youtu.be/5r9V1ryksnw

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